CN1622625A - Digital broadcast signal processing system and method capable of receiving multi digital broadcast signal - Google Patents

Digital broadcast signal processing system and method capable of receiving multi digital broadcast signal Download PDF

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Publication number
CN1622625A
CN1622625A CNA2004100879994A CN200410087999A CN1622625A CN 1622625 A CN1622625 A CN 1622625A CN A2004100879994 A CNA2004100879994 A CN A2004100879994A CN 200410087999 A CN200410087999 A CN 200410087999A CN 1622625 A CN1622625 A CN 1622625A
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China
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signal
digital broadcast
broadcast signal
middleware
digital
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CNA2004100879994A
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Chinese (zh)
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CN100385951C (en
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宋旼锡
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Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/46—Receiver circuitry for the reception of television signals according to analogue transmission standards for receiving on more than one standard at will
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/81—Monomedia components thereof
    • H04N21/8166—Monomedia components thereof involving executable data, e.g. software
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/43615—Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
    • H04N21/43632—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network involving a wired protocol, e.g. IEEE 1394
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • H04N21/4431—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB characterized by the use of Application Program Interface [API] libraries
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet

Abstract

A digital broadcast signal processing system capable of processing digital broadcast signals according to diverse standards. The system includes a digital broadcast signal receiver that receives at least one or more digital broadcast signals, removes signal characteristics according to standards applied to transmission and reception of the digital broadcast signals, receives a broadcast request signal, and transmits a digital broadcast signal from which the signal characteristics according to a transmission and reception standard have been removed corresponding to the broadcast request signal and middleware for processing the digital broadcast signal from which the signal characteristics according to the corresponding transmission and reception standard have been removed, and at least one digital broadcast signal indicator that transmits the broadcast request signal inputted by a user to the digital broadcast signal receiver, receives from the digital broadcast signal receiver the middleware and the digital broadcast signal from which the signal characteristics according to the transmission and reception standard have been removed, and processes the digital broadcast signal according to the middleware. Accordingly, the system can overcome limitations caused by the digital broadcast signal standards and locations for viewing.

Description

Can receive the digital broadcast signal treatment system and the method for multiple digital broadcast singal
Technical field
The present invention relates to receive the digital broadcast signal treatment system and the method for multiple digital broadcast singal, more specifically, relate to following digital broadcast signal treatment system and method: it will be transmitted according to signal and the signal section of acceptance criteria processing and the signal section that processing can be used jointly by be located in reason respectively when handling digital broadcast signal, can help various digital broadcastings and receive the multiple digital broadcast singal, make the user to watch digital broadcasting with low cost.
Background technology
Recently,, begun to use ground wave digital broadcasting, and satellite broadcasting and cablecast are used generally also along with the development of broadcast technology and user's demand.But, basic, for ground wave digital broadcasting signal, the satellite digital broadcasting signal standard different with the cable digital broadcasting signal application, and different standards is applied to the broadcast service provider that provides them, be employed the digital broadcast signal of various criterion.Therefore, be used to watch the equipment of ground wave broadcast, satellite broadcasting or cablecast to be manufactured to the standard that meets the digital broadcast signal that sends by each broadcast service provider, and the user have to equip extra equipment and come receiving broadcast signal so that watch broadcasting.
Figure 1A to 1C is used to show the block diagram of wave number word broadcast signal receiver, satellite broadcast receiver and cablecast receiver traditionally.
Referring to Figure 1A to Fig. 1 C, the ground wave digital broadcasting signal processing system 10 shown in Figure 1A has ground EH tunerE H 11, earthwave channel decoder 12, demultiplexer 13, Video Decoder 14, audio decoder 15, additional-data storage unit 16 and CPU (CPU) 17.
In Figure 1A, ground EH tunerE H 11 is tuned channel in the earthwave frequency band, and receives the ground wave digital broadcasting signal.Earthwave channel decoder 12 and the modulating mode that is applied when sending signal be the demodulation digital broadcast signal accordingly, and corresponding to the digital broadcast signal in the tuning channel of the chnnel coding mode decoding that when sending the ground wave digital broadcasting signal, is applied.
Demultiplexer 13 becomes vision signal, audio signal and data-signal with the ground wave digital broadcasting Signal Separation of channel-decoding.The vision signal that Video Decoder 14 decodings separate, the audio signal that audio decoder 15 decodings separate.In addition, the additional data that separates is stored in the additional-data storage unit 16, in CPU 17, it is decoded, and it is handled in the mode that is suitable for this additional data.CPU 17 operation ground wave broadcast signal processing middlewares are to control aforesaid a series of ground wave broadcast signal processing operations.
Figure 1B is the block diagram that is used to show satellite broadcast signal receiver 20, and described satellite broadcast signal receiver comprises satellite broadcast signal tuner 21, broadcasting-satellite channel decoder 22, satellite broadcasting conditional access system (CAS) 23, demultiplexer 24, Video Decoder 25, audio decoder 26, additional-data storage unit 27 and CPU 28.
Satellite broadcast signal tuner 21 is tuned channel in being used for the frequency band of satellite broadcasting, and receiving digital broadcast signal.Broadcasting-satellite channel decoder 22 comes demodulation yardage word broadcast singal corresponding to the mode of modulation and coding satellite digital broadcasting signal.In the charge satellite broadcast service, satellite broadcasting CAS 23 is used for providing selection to broadcasting receiver, described broadcasting receiver reads the key value that is used for scrambling from the CAS card that is provided by broadcast service provider and install when ordering the satellite broadcast signal reception, and descrambling is by the vision signal of scrambling.
Be applicable to demultiplexer 24, Video Decoder 25, audio decoder 26 and additional-data storage unit 27 with description identical among Figure 1A, CPU 28 operation satellite broadcast signals are handled middleware, control sequence of operations to handle according to satellite broadcast signal.
Fig. 1 C is the block diagram that is used to show cable broadcasting signals receiver 30, and described cable broadcasting signals receiver 30 comprises cablecast tuner 31, cablecast channel decoder 32, cablecast conditional access system (CAS) 33, demultiplexer 34, Video Decoder 35, audio decoder 36, additional data register 37 and CPU 38.
Cablecast tuner 31 is tuned channel in being used for the frequency band of cablecast, and receives the cable digital broadcasting signal.Cablecast channel decoder 32 comes demodulation yardage word broadcast singal corresponding to the mode of modulation and coding cable digital broadcast signal.
The operation of cablecast CAS 33, demultiplexer 34, Video Decoder 35, audio decoder 36 and additional-data storage unit 37 is identical with the description among Figure 1B, CPU 38 operation cable broadcasting signals are handled middleware, handle operation to control aforesaid a series of cable broadcasting signals.
As mentioned above, except tuner 11,21,31 and channel decoder 12,22 and 32, their structure is according to being used for different standard that broadcast singal transmits and receive outside different, but ground wave digital broadcasting signal receiver 10, satellite broadcast signal receiver 20 and cable broadcasting signals receiver 30 have the identical CAS 23 and 33 that is driven by different middlewares of structure, demultiplexer 13,24 and 34, Video Decoder 14,25 and 35, audio decoder 15,26 and 36, and additional-data storage unit 16,27 and 37.
Therefore, this has caused that waste resource and budget have above-mentioned all component so that receive the problem of two or more above-mentioned broadcast singals.
In addition, in traditional broadcast singal receives, have only when providing broadcast signal receiver and display device in identical position and could appreciate broadcasting, this has caused user in some cases to have to be equipped with the problem of several identical equipment at home.
Therefore, legacy system has caused the wasting of resources that causes owing to the various criterion that is used for broadcast singal and the wasting of resources that is caused by position limit, it has caused such problem: broadcast service provider has to drop into more cost on the equipment that will be provided for the user, and the user of subscribed broadcast service also can pay the double broadcasting subscription fee that causes owing to position limit owing to the increase of the expense that broadcasting is provided is the more expense of broadcast singal order and payment.
Summary of the invention
Exploitation the objective of the invention is to address the aforementioned drawbacks and the other problems relevant with traditional structure.One aspect of the present invention provides a kind of digital broadcast signal treatment system and method, it not only can be received by externally handling and sending, must be according to the digital broadcast signal that digital broadcast signal transmits and acceptance criteria is handled, overcome because the transmission and the caused restriction of watching digital broadcasting of acceptance criteria of broadcast singal, and can reduce the digital broadcast service cost, help the function expansion to receive new digital broadcast service, help maintenance and management and receive a plurality of digital broadcast signals by the position limit that overcomes about placing such as the digital broadcast signal treatment system of traditional set-top box.
An aspect that the present invention is other and/or an advantage part will be set forth in part in the following description, and a part can clearly be found out from describe, and perhaps can learn from enforcement of the present invention.
By providing a kind of digital broadcast signal treatment system to realize above-mentioned and/or other aspects and advantage of the present invention, described digital broadcast signal treatment system comprises digital broadcasting signal receiver, it receives one or more at least digital broadcast signals, remove signal characteristic according to the standard of transmission that is applied to digital broadcast signal and reception, receive radio request signal and send corresponding to radio request signal, therefrom removed according to transmitting and the digital broadcast signal of the signal characteristic of acceptance criteria and be used to handle the middleware of therefrom having removed according to the digital broadcast signal of the signal characteristic of the transmission of correspondence and acceptance criteria; With at least one digital broadcast signal indicating device, it will be sent to digital broadcasting signal receiver by the radio request signal of user's input, receive middleware and therefrom removed digital broadcast signal from digital broadcasting signal receiver according to the signal characteristic of transmission and acceptance criteria, and according to this digital broadcast signal of middleware processes.
Digital broadcasting signal receiver can comprise the unit connector, it connects one or more at least digital broadcast signal interface units separably, and described digital broadcast signal interface unit receiving digital broadcast signal is also removed according to signal about received digital broadcast signal and to be transmitted and the signal characteristic of acceptance criteria; Memory, its storage is corresponding to the middleware of each digital broadcast signal that is received by the broadcast singal interface unit, and described middleware is used to handle the digital broadcast signal of therefrom having removed according to the signal characteristic of transmission and acceptance criteria; With receiver CPU (CPU), its control be used for corresponding to the middleware of digital broadcast signal radio request signal, that asked and therefrom removed according to signal transmit and the digital broadcast signal of the signal characteristic of acceptance criteria from the transmission of the digital broadcast signal interface unit that receives the digital broadcast signal of being asked to the digital broadcast signal indicating device.
The unit connector makes can add more digital broadcast signal interface unit, and memory can be stored more corresponding middlewares of digital broadcast signal that receive and handle with the digital broadcast signal interface unit that is added when having added the digital broadcast signal interface unit.
In addition, each digital broadcast signal interface unit can comprise tuner, its tuned channel and receiving digital broadcast signal; Channel decoder, it transmits according to the signal that is applied to the digital broadcast signal that receives and acceptance criteria is separated the mediation channel-decoding about the digital broadcast signal execution that receives, and removes the signal characteristic according to signal transmission and acceptance criteria; And unit interface, it provides connection to receive the digital request signal and to send middleware and be in harmonious proportion channel-decoding and therefrom removed digital broadcast signal according to the signal characteristic of signal transmission and acceptance criteria by separating under the control of receiver CPU.
Simultaneously, the digital broadcast signal indicating device can comprise interface unit, and it receives the digital broadcast signal of therefrom having removed according to the signal characteristic of signal transmission that is used for the digital broadcast signal service and acceptance criteria and the middleware of handling the digital broadcast signal of therefrom having removed signal characteristic; Demultiplexer, it is separated into vision signal, audio signal and additional data with the digital broadcast signal that receives; One or more decoders, vision signal and audio signal that its decoding separates; With indicating device CPU, it controls described demultiplexer and decoder according to the middleware that receives.
Additional-data storage unit be can also comprise with storing additional data, and indicating device CPU this additional data of can decoding, carry out the processing of the additional data of decoding according to middleware, and the additional data after will handling video or audio signal are added into.An aspect is also to comprise the middleware memory cell, the middleware that its storage receives from digital broadcasting signal receiver.
On the other hand, the middleware of native system can comprise the function corresponding to the scrambling mode descramble signal of digital broadcast signal, and the digital broadcast signal indicating device also comprises conditional access system (CAS), its scrambling mode corresponding to the digital broadcast signal that receives is carried out descrambling, and can operate according to the execution of the middleware that comprises the function that can carry out descrambling.Usually, CAS carries out descrambling by read key value from the card with the key value that allows scrambling, and the present invention allows to add described card corresponding to digital broadcast signal, thereby can carry out descrambling about a plurality of digital broadcast signals.
Can develop middleware by using broadcast signal process application programming interfaces (API), and broadcast signal process API can comprise one group of function, the operation of its defining operation and control definition is to handle digital broadcast signal in the digital broadcast signal indicating device.In other words, broadcast signal process API provides about operate and control the function of the operation of definition such as each device definitions such as CAS of demultiplexer, decoder and digital broadcast signal indicating device, and the broadcasting provider that broadcast service is provided uses broadcast signal process API, thereby the digital broadcast signal indicating device is handled the standard that is used for the broadcast singal that they send.Can develop middleware as portable programming language with the JAVA programming language.
As each decoder of decoded video signal and audio signal, mpeg video decoder can be used for handling vision signal, and mpeg audio decoder or Dolby-AC-3 decoder can be used for audio signal.
The digital broadcast signal indicating device can also comprise function storaging unit, and the function that its storage middleware uses is by calling the described middleware of the actual execution of the function that is stored in the function storaging unit.
For the mutual data in digital broadcast signal indicating device according to the present invention transmit, receive and communicate by letter, digital broadcasting signal receiver and digital broadcast signal indicating device are formed the daisy chain network, and the equipment of composition network can communicate by using IEEE 1394 high speed interfaces (HSDI).
In addition, digital broadcast signal can be any one in ground wave digital broadcasting signal, satellite digital broadcasting signal and the cable digital broadcasting signal.
As mentioned above, digital broadcasting signal receiver can be separated and be in harmonious proportion channel-decoding to remove the signal characteristic according to signal transmission and acceptance criteria, digital broadcast signal behind digital broadcast signal indicating device receiving demodulation and the channel-decoding and corresponding middleware subsequently, it makes the present invention to overcome because the restriction that causes about the broadcast standard of the broadcasting that can browse by the digital broadcast signal indicating device.
Above-mentioned and/or other aspects of the present invention and advantage can also realize by a kind of digital broadcast signal processing method is provided, described method comprises that digital broadcast signal receives operation, it receives one or more at least digital broadcast signals, remove signal characteristic according to the standard of transmission that is applied to digital broadcast signal and reception, receive radio request signal and send corresponding to radio request signal, therefrom removed according to signal and transmitted and the digital broadcast signal of the signal characteristic of acceptance criteria and being used to is handled this and therefrom removed middleware according to the digital broadcast signal of the signal characteristic of the signal transmission of correspondence and acceptance criteria; With digital broadcast signal indication operation, it sends the radio request signal by user's input, and receive middleware and therefrom removed digital broadcast signal according to the signal characteristic of signal transmission and acceptance criteria, and according to this digital broadcast signal of middleware processes.
In aspect of said method, digital broadcast signal receives operation can comprise the digital broadcast signal attended operation, and it receives one or more at least digital broadcast signals and remove according to signal about the digital broadcast signal that receives and transmits and the signal characteristic of acceptance criteria; If with receive radio request signal from external equipment, then will corresponding to radio request signal, therefrom removed according to signal and transmitted and the digital broadcast signal of the signal characteristic of acceptance criteria and the middleware of handling the digital broadcast signal of therefrom having removed signal characteristic are sent to the operation of external equipment.
The digital broadcast signal attended operation comprises: tuner operation, tuning channel and the receiving digital broadcast signal that is used for received digital broadcast signal; The channel-decoding operation, it transmits according to the signal that is applied to the digital broadcast signal that receives and acceptance criteria is separated the mediation channel-decoding about the digital broadcast signal execution that receives, and removal transmits according to signal and the signal characteristic of acceptance criteria.
Digital broadcast signal indication operation can comprise the operation that sends radio request signal, receives therefrom to have removed according to signal from digital broadcasting signal receiver and transmits and the digital broadcast signal of the signal characteristic of acceptance criteria and the middleware that the digital broadcast signal of signal characteristic has therefrom been removed in processing; Carry out the operation of middleware, the digital broadcast signal that receives is separated into the multiple signals lock out operation of vision signal, audio signal and additional data according to the middleware that receives; With the vision signal of separating with audio decoder and the operation of audio signal according to the middleware video decode of carrying out.
The digital broadcast signal indicating means can also comprise the additional data storage operation of storing additional data, and according to middleware decoding with handle the operation of additional data.
Preferably, the digital broadcast signal indicating means can also comprise the operation of storing middleware, described middleware processes has removed therefrom that the signal of each at least one or a plurality of digital broadcast signal transmits and the digital broadcast signal of the signal characteristic of acceptance criteria according to being applied to, and also comprises the operation that the middleware corresponding to the digital broadcast signal of being asked is sent to external equipment.
Simultaneously, described middleware can comprise the function corresponding to the scrambling mode descramble signal of digital broadcast signal, and the digital broadcast signal indicating means also comprises conditional access system (CAS) operation, it carries out descrambling according to middleware corresponding to the scrambling mode of the digital broadcast signal that receives, herein, the CAS operation can comprise the operation of reading key value from the card with the key value that allows scrambling, and the operation of carrying out descrambling by the key value that use is read.But, since digital broadcast signal not as in the ground wave digital broadcasting signal by scrambling, so middleware does not comprise the function that is used to carry out the CAS operation.
Can develop middleware by using existing broadcast signal process application programming interfaces (API), and broadcast signal process API can comprise one group of function, and the operation of its defining operation and control definition is to carry out Video processing, Audio Processing and data processing in the digital broadcast signal indicating device.In addition, described function and middleware can be developed with portable programming language, preferably develop with the JAVA programming language, and the digital broadcast signal indicating means also comprise the operation of storage by the function of middleware use.
The operation of decoded video signal and audio signal can be used the mpeg video decoder of processing vision signal and the mpeg audio decoder or the Dolby-AC-3 decoder of audio signal.
Digital broadcast signal can be any one in ground wave digital broadcasting signal, satellite digital broadcasting signal and the cable digital broadcasting signal.
Simultaneously, digital broadcast signal treatment system according to the present invention can comprise the unit connector, it connects the digital broadcast signal interface unit separably, this digital broadcast signal interface unit receiving digital broadcast signal and remove according to signal about the digital broadcast signal that receives and to transmit and the signal characteristic of acceptance criteria; Memory, its storage are used to handle therefrom removed according to signal and transmit and the middleware of the digital broadcast signal of the signal characteristic of acceptance criteria; With receiver CPU, its control middleware and therefrom having removed according to the transmission of the digital broadcast signal of the signal characteristic of signal transmission and acceptance criteria to the digital broadcast signal indicating device.
Each digital broadcast signal interface unit comprises: tuner, its tuned channel and receiving digital broadcast signal; Channel decoder, it transmits according to the signal that is applied to the digital broadcast signal that receives and acceptance criteria is separated the mediation channel-decoding about the digital broadcast signal execution that receives, and removes the signal characteristic according to signal transmission and acceptance criteria; And unit interface, it receives digital request signal, and provides to send to separate and be in harmonious proportion the interface of the digital broadcast signal behind the channel-decoding.
The unit connector makes can add more digital broadcast signal interface unit, and when having added the digital broadcast signal interface unit, memory can be stored the corresponding middleware of standard of the digital broadcast signal that more and the digital broadcast signal interface unit that added receive.
In addition, can develop middleware by using existing broadcast signal process application programming interfaces (API), and broadcast signal process API can comprise one group of function, and the operation of its defining operation and control definition is so that transmit and the digital broadcast signal of the signal characteristic of acceptance criteria carries out Video processing, Audio Processing and data processing therefrom having removed according to signal.Described function and middleware can be developed with portable programming language, preferably develop with the JAVA programming language.
In addition, middleware can comprise the function that can carry out descrambling corresponding to the scrambling mode of the digital broadcast signal that is used to send.
Digital broadcast signal can be any one in ground wave digital broadcasting signal, satellite digital broadcasting signal and the cable digital broadcasting signal.
Above-mentioned and/or other aspects of the present invention and advantage can also realize by a kind of digital broadcast signal interface unit is provided, described digital broadcast signal interface unit comprises tuner, its tuning channel and this digital broadcast signal of reception that is used for digital broadcast signal, channel decoder, it is carried out about digital broadcast signal corresponding to the chnnel coding of the digital broadcast signal that is used to receive and modulation system and separates the mediation channel-decoding, and unit interface, it provides interface to external equipment, also comprise memory, it stores middleware, and described middleware is a program of handling digital broadcast signal after separating of received digital broadcast signal is in harmonious proportion channel-decoding.
Here, described middleware can comprise the function that can carry out descrambling corresponding to the scrambling mode of the digital broadcast signal that will be sent out, and this middleware can be developed by using existing broadcast signal process API, and broadcast signal process API can comprise one group of function, and the operation of its defining operation and control definition is so that transmit and the digital broadcast signal of the signal characteristic of acceptance criteria is handled therefrom having removed according to signal.Described function and middleware can be developed with portable programming language, preferably develop with the JAVA programming language.
In addition, unit interface can be IEEE 1394 HSDI interfaces of supporting the daisy chain network, and digital broadcast signal can be in ground wave digital broadcasting signal, satellite digital broadcasting signal and the cable digital broadcasting signal any one.
Digital broadcast signal attended operation according to the embodiment of the invention can comprise tuner operation, tuning channel and the receiving digital broadcast signal that is used at least one or a plurality of digital broadcast signals; Channel-decoding operation, it is carried out about digital broadcast signal corresponding to the chnnel coding of the digital broadcast signal that is used to receive and modulation system and separates the mediation channel-decoding; With the unit attended operation, it provides interface to external equipment; Also comprise the operation of storing middleware, described middleware is a program of handling digital broadcast signal after separating of received digital broadcast signal is in harmonious proportion channel-decoding.
In this embodiment, digital broadcast signal can be any one in ground wave digital broadcasting signal, satellite digital broadcasting signal and the cable broadcasting signals.
Digital broadcast signal indicating device according to the embodiment of the invention can comprise interface unit, and it receives therefrom to have removed according to signal and transmits and the digital broadcast signal of the signal characteristic of acceptance criteria and be used to handle the middleware of therefrom having removed according to the digital broadcast signal of the signal characteristic of signal transmission and acceptance criteria; Demultiplexer, it is separated into vision signal, audio signal and additional data with the digital broadcast signal that receives; One or more decoders, vision signal and audio signal that its decoding separates; With indicating device CPU, it controls described demultiplexer and decoder according to the middleware that receives.
Therefrom removed according to signal and transmitted and the digital broadcast signal of the signal characteristic of acceptance criteria is a digital broadcast signal of being separated the mediation channel-decoding according to the signal transmission that is applied to digital broadcast signal and acceptance criteria, corresponding to chnnel coding and modulation system.
The digital broadcast signal indicating device also comprises conditional access system (CAS), and its scrambling mode corresponding to the digital broadcast signal that receives is come this digital broadcast signal of descrambling, and wherein middleware can comprise the function that drives CAS.Here, CAS can carry out descrambling by reading key value from the card with the key value that is used for carrying out descrambling, and can add more card corresponding to the digital broadcast signal that will receive.
In addition, can develop middleware by using existing broadcast signal process API, and broadcast signal process API can comprise one group of function, the operation of its defining operation and control definition is used for handling digital broadcast signal at the broadcast singal indicating device.Described function and middleware can be developed with portable programming language, preferably develop with the JAVA programming language.
The digital broadcast signal indicating device can also comprise the function storaging unit that the function that provides among the API is provided.
The digital broadcast signal indicating device can also comprise additional-data storage unit, its storing additional data, and indicating device CPU can and handle additional data according to the middleware decoding.
As the decoder of decoded video signal and audio signal, mpeg video decoder can be used for handling vision signal, and mpeg audio decoder or Dolby-AC-3 decoder can be used for audio signal.
Interface unit can be IEEE 1394 high speed interfaces (HSDI), and digital broadcast signal can be any one in ground wave digital broadcasting signal, satellite digital broadcasting signal and the cable digital broadcasting signal.
Simultaneously, the digital broadcast signal indicating means according to the embodiment of the invention can comprise: receive therefrom to have removed according to the signal that is used for digital broadcast signal and transmit and the digital broadcast signal of the signal characteristic of acceptance criteria and be used to handle the operation of therefrom having removed according to the middleware of the digital broadcast signal of the signal characteristic of signal transmission and acceptance criteria; The digital broadcast signal that receives is separated into the multiple signals lock out operation of vision signal, audio signal and additional data according to described middleware; With the vision signal of separating and the decode operation of audio signal according to described middleware decoding.
Therefrom removed according to signal and transmitted and the digital broadcast signal of the signal characteristic of acceptance criteria is a digital broadcast signal of being separated the mediation channel-decoding according to the signal transmission that is applied to digital broadcast signal and acceptance criteria, corresponding to chnnel coding and modulation system.
According to an aspect of the present invention, the digital broadcast signal indicating means also comprises conditional access system (CAS) operation, its scrambling mode corresponding to digital broadcast signal is come this digital broadcast signal of descrambling, this CAS step is carried out descrambling by reading key value from the card with the key value that is used for carrying out descrambling, and can add more card corresponding to the digital broadcast signal that will receive.
In addition, can develop middleware by using existing broadcast signal process API, and broadcast signal process API comprises one group of function, the operation of its defining operation and control definition is so that handle digital broadcast signal in the digital broadcast signal indicating device.Here, described function and middleware are with portable programming language development, for example with the JAVA programming language development.In addition, the digital broadcast signal indicating means can also comprise the function storage operation that the function that provides among the API is provided.
The digital broadcast signal indicating means can also comprise the additional data storage operation of storing additional data, and according to middleware decoding and processing additional data.The digital broadcast signal indicating means can also comprise the video and audio signal of output decoder and video coding operation and digital audio/simulation (D/A) conversion operations of the additional data after the processing.
Description of drawings
In conjunction with the accompanying drawings, from following description to embodiment, it is clear and easier to understand that these and/or other aspect of the present invention and advantage will become, wherein:
Figure 1A to Fig. 1 C shows the block diagram of wave number word broadcast signal receiver, satellite broadcast signal receiver, cable broadcasting signals receiver traditionally;
Fig. 2 schematically illustrates view according to an embodiment of the invention, installation digital broadcast signal treatment system in the family;
Fig. 3 is the flow chart of operation of the digital broadcast signal treatment system of key diagram 2;
Fig. 4 is the block diagram that is shown specifically the digital broadcasting signal receiver of Fig. 2;
Fig. 5 A to Fig. 5 C is the block diagram of the digital broadcast signal interface unit shown in detailed illustration Fig. 4;
Fig. 6 is the flow chart of operation of the digital broadcasting signal receiver of key diagram 4;
Fig. 7 describes in detail to remove among Fig. 6 according to signal to transmit and the flow chart of the processing of the signal characteristic of acceptance criteria;
Fig. 8 is the block diagram that is shown specifically the digital broadcast signal indicating device of Fig. 2; With
Fig. 9 is the flow chart of operation of the digital broadcast signal indicating device of key diagram 8.
Embodiment
Now will to illustrate in the accompanying drawings its example, embodiments of the invention are described in detail, wherein identical reference number is indicated components identical all the time.Hereinafter embodiment is described, to explain the present invention by the reference accompanying drawing.
Fig. 2 schematically illustrates view according to an embodiment of the invention, installation digital broadcast signal treatment system in the family.Referring to Fig. 2, this embodiment comprises installation digital broadcasting signal receiver 100 and at least one or a plurality of digital broadcast signal indicating device 400 in the family.
Digital broadcasting signal receiver 100 receives from the outside such as various digital broadcast signals such as ground wave digital broadcasting signal, satellite digital broadcasting signal and cable digital broadcasting signals, remove according to signal corresponding to the radio request signal that sends from a digital broadcast signal indicating device 400 and to transmit and the signal characteristic of acceptance criteria, and the signal that will remove signal characteristic is sent to digital broadcast signal indicating device 400 about digital broadcast signal.By being in harmonious proportion channel-decoding and removing signal characteristic according to transmission and acceptance criteria according to corresponding the separating of the standard execution that is applied to selected broadcast singal and chnnel coding and modulation system.In addition, simultaneously, receiver 100 also sends the middleware code that forms application program corresponding to radio request signal, described application program is used for carrying out scrambling, Video processing, Audio Processing and data processing at the digital broadcast signal indicating device 400 of received signal.
When on indicating device 400, existing the user to import, digital broadcast signal indicating device 400 is sent to digital broadcasting signal receiver 100 with radio request signal, and receive the digital broadcast signal do not contain according to the signal characteristic that is used for the standard that digital broadcast signal transmits and receive, promptly separated and be in harmonious proportion the digital broadcast signal of channel-decoding corresponding to the modulation of when sending signal, carrying out and channel coding method.Simultaneously, digital broadcast signal indicating device 400 receiving digital broadcast signals reach about the digital broadcast signal of being asked and carry out the middleware that scrambling, Video processing, Audio Processing and additional data are handled.Then, the middleware that digital broadcast signal indicating device 400 operation receives, handling described digital broadcast signal, and according to digital broadcast signal output image and sound after handling.
Middleware can be provided by the broadcast service provider exploitation that digital broadcast signal is provided and with broadcast service.In addition, can be by using broadcast signal process application programming interfaces (API) middleware of encoding, described broadcast signal process application programming interfaces are made up of the function that allows 400 controls of digital broadcast signal indicating device to be used to handle the operation of digital broadcast signal.In addition, can develop middleware and function with portable (mobile) programming language, digital broadcast signal indicating device 400 comprises interpretive program, and it explains middleware of being developed and the api function that uses in this middleware, and carries out described interpretive program based on explaining.Portable programming language can be the JAVA programming language, and can be with the JAVA virtual machine interpretive program that acts on the middleware of being developed with the JAVA programming language.
In addition, if the broadcast service of selecting on digital broadcast signal indicating device 400 is the charging broadcast service, then digital broadcast signal indicating device 400 receive and descrambling from digital broadcasting signal receiver 100, by the digital broadcast signal of scrambling.If digital broadcast signal indicating device 400 receives the digital broadcast signal of descrambling from digital broadcasting signal receiver 100, then must use expensive 5C cable, as the communication line between digital broadcasting signal receiver 100 and digital broadcast signal indicating device 400, otherwise, if digital broadcast signal indicating device 400 carries out descrambling, then can use cheap communication line.
Simultaneously, digital broadcast signal treatment system of the present invention allows by using the communication of IEEE 1394 high speed interfaces (HDSI), if and use IEEE 1394 interfaces, because IEEE 1394 interfaces support daisy chain to connect a plurality of equipment cable connecting bus system to intercom mutually connected in series that promptly allows one by one, each digital broadcast signal indicating device 400 connects with serial network, thereby any one digital broadcast signal indicating device 400 can be connected to digital broadcasting signal receiver 100.
Fig. 3 is the flow chart of the operation of explanation digital broadcast signal treatment system shown in Figure 2.Referring to Fig. 3, digital broadcast signal indicating device 400 is sent to digital broadcasting signal receiver 100 (S200) with specific broadcasting (for example request is used for the radio request signal of the satellite broadcasting that the user watches).Digital broadcasting signal receiver 100 receives this specific broadcasting, i.e. satellite broadcast signal, and before sending satellite broadcast signal, separate mediation this satellite broadcast signal of channel-decoding (S220) corresponding to chnnel coding and modulation system.In addition, digital broadcasting signal receiver 100 sends satellite broadcast signal and this satellite broadcast signal is handled middleware (S240), and described satellite broadcast signal is the broadcast singal that is received, and for example separates the broadcast singal of mediation channel-decoding.In addition, digital broadcast signal indicating device 400 receives middleware and broadcast singal (S260).In addition, the middleware that digital broadcast signal indicating device 400 operation is received, to carry out about received broadcast singal (for example satellite broadcast signal) thus Video processing and Audio Processing output image and sound (S280).
By above-mentioned system according to Fig. 2 and 3, the broadcast viewing person can receive their desirable broadcasting anywhere with lower expense and without any need for the additional cost land used.
Fig. 4 is the block diagram that is illustrated in the digital broadcasting signal receiver 100 shown in Fig. 2.Referring to Fig. 4, digital broadcasting signal receiver 100 of the present invention comprises: a plurality of unit connector 135, a receiver CPU (CPU) 120 and a memory 130.
That unit connector 135 is connected to is described later, as the digital broadcast signal interface unit of removing according to the equipment of the characteristics of signals that is used for the standard that broadcast singal transmits and receive 140, and connect the digital broadcast signal interface unit that is connected with control bus.The signal of separating the mediation channel-decoding can be an example of removing according to the characteristics of signals of signal transmission and acceptance criteria.
Memory 130 storage middlewares, described middleware is the program that is used for carrying out about the digital broadcast signal that is received by each digital broadcast signal interface unit video and Audio Processing in the external digital broadcast singal indicating device.
Middleware is the program that is used for carrying out at digital broadcast signal indicating device 400 scrambling, Video processing, Audio Processing and data processing, and it is preferred with portable programming language development, with the JAVA programming language development.And, middleware is by the exploitation of the provider of digital broadcast signal interface unit 140, and middleware preferably by the producer of digital broadcast signal indicating device 400 by using the application programming interfaces (API) of handling broadcast singal develop, in described API for the operation of digital broadcast signal indicating device 400 with operate to control and defined function.
Receiver CPU 120 control is a plurality of to be connected in the digital broadcast signal interface unit 140 of unit connector 135 and to receive a digital broadcast signal interface unit of the broadcast singal of request, thereby will be removed according to transmitting and the broadcast singal of the characteristics of signals of acceptance criteria is sent to the digital broadcast signal indicating device of the described radio request signal of transmission.In addition, receiver CPU 120 control storages 130 are so that send broadcast singal and corresponding to the middleware code of the broadcast singal of being asked.
Can add or remove digital broadcast signal interface unit 140, and in one aspect of the invention, owing to added digital broadcast signal interface unit 140, in memory 330, additionally added the middleware of the broadcast singal that the digital broadcast signal interface unit 140 that is used for being added receives.
Simultaneously, with the communicating by letter of digital broadcast signal indicating device in, can use IEEE 1394 HSDI interfaces, and in this situation, each digital broadcast signal indicating device 400 becomes serial network with the daisy chain modal sets, and being included in unit interface in the digital broadcast signal interface unit 140 of each connection, to be connected to any one structure that is connected to the digital broadcast signal indicating device 400 of serial network be possible.Unit interface can be IEEE 1394 HSDI interfaces.By a kind of like this interface of supporting the daisy chain pattern, forming the digital broadcast signal indicating device of network can communicate by letter with digital broadcasting signal receiver 100, and the digital broadcast signal interface unit 140 that wherein is connected to network is connected to this digital broadcasting signal receiver 100.
Fig. 5 A to 5C is the block diagram of detailed illustration digital broadcast signal interface unit 140.
Fig. 5 A is the block diagram that graphic extension receives the digital broadcast signal interface unit 140 of ground wave digital broadcasting.The digital broadcast signal interface unit 140-1 that receives the earthwave digital signal comprises: earthwave tuner for digital signals 142-1, its tuning channel and receiving digital broadcast signal that is used for the earthwave digital signal; Earthwave digital signal channel decoder 144-1, it is carried out and to separate the mediation channel-decoding corresponding to chnnel coding that is used to send received ground wave digital broadcasting signal and modulation system; With the unit interface 146-1 as IEEE 1394 HSDI interfaces, it provides and being connected of the digital broadcast signal indicating device of forming network.
Fig. 5 B is the block diagram of the digital broadcast signal interface unit 140 of graphic extension receiving satellite word broadcasting.This digital broadcast signal interface unit 140-2 of receiving satellite word broadcasting comprises: satellite digital broadcasting tuner 142-2, its tuning channel and receiving digital broadcast signal that is used for the satellite digital broadcasting signal; Satellite digital broadcasting channel decoder 144-2, it is carried out and to separate the mediation channel-decoding corresponding to chnnel coding that is used to send received satellite digital broadcasting signal and modulation system; With the unit interface 146-2 as IEEE 1394 HSDI interfaces, it provides and being connected of the digital broadcast signal indicating device of forming network.
Fig. 5 C is the block diagram that graphic extension receives the digital broadcast signal interface unit 140 of cable digital broadcasting signal.The digital broadcast signal interface unit 140-3 that receives the cable digital broadcasting signal comprises: cable digital broadcasting tuner 142-3, and it is tuning to be used for the channel of cable digital broadcasting signal and to receive the cable digital broadcasting signal; Cable digital broadcasting channel decoder 144-3, it is carried out and to separate the mediation channel-decoding corresponding to chnnel coding that is used to send received cable digital broadcasting signal and modulation system; With the unit interface 146-3 as IEEE 1394 HSDI interfaces, it provides and being connected of the digital broadcast signal indicating device of forming network.
Each digital broadcast signal interface unit can comprise the memory (not shown), and its storage is used for carrying out about received digital broadcast signal at the digital broadcast signal indicating device middleware of video and Audio Processing.
Because said structure, digital broadcasting signal receiver of the present invention can receive the desirable digital broadcast signal of more user easily by only the digital broadcast signal interface unit being added into the unit connector 135 of digital broadcasting signal receiver.
Fig. 6 is the flow chart of the operation of explanation digital broadcasting signal receiver shown in Figure 4.Referring to Fig. 4, when digital broadcasting signal receiver 100 was opened, each digital broadcast signal interface unit 140 can receive corresponding digital broadcast signal, and can remove signal and transmit and receiving feature (S300) from received digital broadcast signal.
Then, digital broadcast signal interface unit 140 can receive the radio request signal (S320) of the specific broadcast singal of request from the digital broadcast signal indicating device 400 of communication with it.
The digital broadcast signal that is received by digital signal interface unit 140 is sent to receiver CPU 120, receiver CPU 120 controls receive the digital broadcast signal interface unit 140 of the broadcast singal of being asked, and externally send the digital broadcast signal of separating the mediation channel-decoding, at this moment, receiver CPU 120 sends middleware, and described middleware is the program (S340) that control of video processing in the digital broadcast signal indicating device that sends the broadcast singal that does not have transmission and receiving feature, Audio Processing and additional data are handled.
The digital broadcast signal and the middleware that are sent are sent to the digital broadcast signal indicating device, and this indicating device is via having sent radio request signal by the daisy chain bus that uses IEEE 1394 HSDI interfaces to make up.
Fig. 7 describes in detail to remove among Fig. 6 according to signal to transmit and the flow chart of the processing of the signal characteristic of acceptance criteria.Referring to Fig. 7, digital broadcasting signal receiver 100 tuning channel and the receiving digital broadcast signals (S301) that are used for the external digital broadcast singal.In addition, digital broadcasting signal receiver 100 is carried out about according to transmitting and the demodulation (S305) of the digital broadcast signal of acceptance criteria, and carries out decoding about the digital broadcast signal of demodulation to remove the characteristics of signals (S307) according to transmission and acceptance criteria.
Fig. 8 is the block diagram of the digital broadcast signal indicating device 400 of detailed illustration Fig. 2.Referring to Fig. 2, this digital broadcast signal indicating device 400 comprises: interface unit 410, indicating device CPU 420, middleware memory cell 430, function storaging unit 440, CAS 450, demultiplexer 460, Video Decoder 470, audio decoder 480 and additional-data storage unit 490.
Can use IEEE 1394 HSDI interfaces for interface unit 410, and this interface unit 410 provides from the broadcast singal of external data broadcast signal receiver 100 receiving demodulations and channel-decoding and is used to handle the interface of the middleware of the broadcast singal of being asked.
Here, the middleware that is used for handling the broadcast singal of being asked be used for carrying out at described digital broadcast signal indicating device 400 that descrambling, multichannel decompose, program that video/audio decoding and additional data are handled, and this middleware is with the packaged type programming language development, preferably, with the JAVA programming language development.In addition, the broadcast signal process API that can provide by the producer who uses by described digital broadcast signal indicating device 400 develops middleware, has defined the operation that is used for described digital broadcast signal indicating device and the function of operation control in this API.
The middleware that 430 storages of middleware memory cell receive from external digital broadcast signal receiver 100, and the function that provides among the API is provided function storaging unit 440.
Indicating device CPU 420 calls the function that is stored in the function storaging unit 440 by the middleware interpretive program, and operation is stored in the middleware in the middleware memory cell 440.In one aspect of the invention, digital broadcast signal indicating device 400 also comprises interpretive program memory cell (not shown), and its storage middleware interpretive program is to be the JAVA virtual machine in the situation of JAVA programming language development at middleware promptly.In addition, indicating device CPU 420 control CAS 450, demultiplexer 460, Video Decoder 470, audio decoder 480 and additional-data storage unit 490 are to handle the digital broadcast signal that receives by the middleware that uses execution.
As mentioned above, owing to receive middleware corresponding to received digital broadcast signal when receiving digital broadcast signal, so the producer of digital broadcast signal indicating device can make such product and need not consider to be applied to the various standards of described digital broadcast signal.
Simultaneously, if received digital broadcast signal is the broadcasting that is used for from the charging broadcast service, then CAS 450 is corresponding to about the scrambling mode of the digital broadcast signal that receives and the received digital broadcast signal of descrambling, and recover to remove the digital broadcast signal of scrambling, and the key value that described recovery can be read corresponding to received digital broadcast signal by the card (not shown) of establishing among CAS 450 carries out.Therefore, CAS 450 preferably has the card of storage key value, the digital broadcast signal of all scramblings that described key value receives corresponding to digital broadcasting signal receiver.
Demultiplexer 460 will become vision signal, audio signal and additional data by the signal of CAS 450 recoveries or the Signal Separation of not scrambling.
Video Decoder 470 is decoded video signal under the control of the middleware of operation, and Video Decoder 470 can be a mpeg video decoder.In addition, audio decoder 480 is decoded audio signal under the control of the middleware of operation, and audio decoder 480 can be mpeg audio decoder or DolbyAC-3.
Additional data after the separation is stored in the additional-data storage unit 490, these additional datas of indicating device CPU 420 decoding, and under the control of the middleware of operation, carry out a certain processing corresponding to the additional data of decoding.
Externally show the vision signal of decoding on the display unit (not shown) by the video encoder (not shown), audio signal by digital/analog converter (not shown) and external loudspeaker (not shown) output decoder is as sound, and digital broadcast signal indicating device 400 can also comprise video output display unit (not shown) and audio frequency output loud speaker (not shown).
Fig. 9 is the flow chart of operation of the digital broadcast signal indicating device of key diagram 8.Referring to Fig. 8 and Fig. 9, digital broadcast signal indicating device 400 sends the radio request signal (S500) of request with received specific broadcast singal according to user's input.Here, radio request signal comprises about the information of the equipment that sends radio request signal and the information of relevant broadcast singal of asking.
Based on the radio request signal that in operation S500, sends, digital broadcast signal indicating device 400 receives the broadcast singal of request and is used to handle the middleware (S510) of the broadcast singal of being asked by digital broadcast signal indicating device 400, and moves described middleware (S520).
At first, digital broadcast signal indicating device 400 checks whether the broadcast singal that receives is by the broadcast singal of scrambling (S530), if the broadcast singal that receives not by scrambling, then is separated into this broadcast singal vision signal, audio signal and additional data (S550).If the broadcast singal that receives is by scrambling, then digital broadcast signal indicating device 400 receives the broadcast singal (S550) that key value and descrambling corresponding to the broadcast singal of being asked receive from card, and wherein said card is mounted at least one or a plurality of card among the CAS 150.Here, carry out descrambling under the control of the middleware that in operation S500, moves.
If the signal of scrambling is finished and recovered to remove to descrambling, then digital broadcast signal indicating device 400 Signal Separation that will remove scrambling becomes vision signal, audio signal and additional data signal (S560).Digital broadcast signal indicating device 400 is carried out video decode, audio decoder and additional data about the signal that separates and is handled in operation S550, and output image and sound (S570).
Because the producer can make such digital broadcast signal indicating device and need not consider that each service provider is applied to the various criterion of their broadcast singal, therefore such digital broadcast signal indicating device has the internal structure of simplification, and the broadcasting spectator can be with the such digital broadcast signal indicating device of low cost equipment.
Pass through said method, digital broadcast signal treatment system of the present invention not only makes the user easily to watch various digital broadcastings with low cost, also make broadcast service provider to provide broadcast service, thereby provider can obtain more subscriber with low cost.
As mentioned above, system constructed according to the invention makes the user can eliminate in the investment that is used on the identical device of system, thereby can provide multiple broadcast service to the user with low cost, and owing to can be only come receiving digital broadcast signal more widely by being used for the simple connection that the user wishes the digital broadcast signal interface unit of the broadcast singal received, therefore described system has promoted it to the more expansion of multiple digital broadcast singal.In addition, owing to overcome the restriction of traditional position for receiving broadcast signal, described system has the effect that reduces user effort.
Simultaneously, because broadcast service provider only need provide the digital broadcast signal interface unit of subscriber that they must offer them broadcast service to receive them and provide as equipment, therefore broadcast service provider can reduce the broadcast service cost, so that assemble more subscriber.
In addition, the producer of digital broadcasting signal receiver and digital broadcast signal indicating device can reduce because broadcast singal is abideed by standard and the cost that processing caused of characterization.
Although illustrated and described some embodiments of the present invention, but those skilled in the art is understood that, can change these embodiments under the situation of principle of the present invention and spirit, scope wherein of the present invention is limited by described claim and their equivalent.

Claims (42)

1. digital broadcast signal treatment system comprises:
Digital broadcasting signal receiver, it receives at least one digital broadcast signal, remove signal characteristic according to the standard of transmission that is used at least one digital broadcast signal and reception, receive radio request signal and send corresponding to radio request signal, therefrom removed according to transmitting and the digital broadcast signal of the signal characteristic of acceptance criteria and be used to handle the middleware of therefrom having removed according to the digital broadcast signal of the signal characteristic of the transmission of correspondence and acceptance criteria; With
At least one digital broadcast signal indicating device, it will be sent to digital broadcasting signal receiver by the radio request signal of user's input, receive middleware and therefrom removed digital broadcast signal from digital broadcasting signal receiver according to the signal characteristic of transmission and acceptance criteria, and according to this digital broadcast signal of middleware processes.
2. digital broadcast signal treatment system as claimed in claim 1, wherein said digital broadcasting signal receiver comprises:
The unit connector, it connects the digital broadcast signal interface unit separably, and this digital broadcast signal interface unit receiving digital broadcast signal is also removed according to signal about the digital broadcast signal that receives and to be transmitted and the signal characteristic of acceptance criteria;
Memory, its storage is corresponding to the middleware of the digital broadcast signal that receives; With
Receiver CPU (CPU), its control middleware and therefrom having removed according to the transmission of the digital broadcast signal of the signal characteristic of signal transmission and acceptance criteria to the digital broadcast signal indicating device.
3. digital broadcast signal treatment system as claimed in claim 2, wherein each described digital broadcast signal interface unit comprises:
Tuner, its tuned channel and receiving digital broadcast signal;
Channel decoder, its signal according to the digital broadcast signal that is used to receive transmit and acceptance criteria is separated the mediation channel-decoding about the digital broadcast signal execution that receives, and remove the signal characteristic according to signal transmission and acceptance criteria; With
Unit interface, its by receiver CPU control and receive the digital request signal from the digital broadcast signal indicating device, and middleware is provided and has therefrom removed digital broadcast signal according to the signal characteristic of signal transmission and acceptance criteria to the digital broadcast signal indicating device.
4. digital broadcast signal treatment system as claimed in claim 1, wherein said digital broadcast signal indicating device comprises:
Interface unit, it receives middleware and has therefrom removed digital broadcast signal according to the signal characteristic of signal transmission and acceptance criteria;
Demultiplexer, it is separated into vision signal, audio signal and additional data with the digital broadcast signal that receives;
One or more decoders, vision signal and audio signal that its decoding separates; With
Indicating device CPU, it controls described demultiplexer and decoder according to the middleware that receives.
5. digital broadcast signal treatment system as claimed in claim 4, wherein said indicating device CPU adds in the vision signal according to the middleware processes additional data that receives and with the additional data of handling.
6. digital broadcast signal treatment system as claimed in claim 4 also comprises conditional access system (CAS), and its scrambling mode corresponding to digital broadcast signal is come this digital broadcast signal of descrambling, and wherein CAS operates according to middleware.
7. digital broadcast signal treatment system as claimed in claim 4, also comprise function storaging unit, its storage and the corresponding function of middleware that passes through to use broadcast signal process application programming interfaces (API) exploitation, described application programming interfaces are made up of so that handle the function of digital broadcast signal in the digital broadcast signal indicating device the operation that one group of defining operation and control define.
8. digital broadcast signal treatment system as claimed in claim 1, wherein said digital broadcasting signal receiver and digital broadcast signal indicating device are formed the daisy chain network by using IEEE 1394 high speed interfaces (HSDI).
9. digital broadcast signal treatment system as claimed in claim 1, wherein said digital broadcast signal are any one in ground wave digital broadcasting signal, satellite digital broadcasting signal and the cable digital broadcasting signal.
10. digital broadcast signal processing method comprises:
Digital broadcast signal receives operation, it receives at least one digital broadcast signal, remove signal characteristic according to the standard of transmission that is used for digital broadcast signal and reception, receive radio request signal and send corresponding to radio request signal, therefrom removed according to signal and transmitted and the digital broadcast signal of the signal characteristic of acceptance criteria and being used to is handled this and removed therefrom that signal according to correspondence transmits and the middleware of the digital broadcast signal of the signal characteristic of acceptance criteria; With
Digital broadcast signal indication operation, it sends the radio request signal by user's input, and receive middleware and therefrom removed digital broadcast signal according to the signal characteristic of signal transmission and acceptance criteria, and according to this digital broadcast signal of middleware processes.
11. digital broadcast signal processing method as claimed in claim 10, wherein said digital broadcast signal receive operation and comprise:
The digital broadcast signal attended operation, it receives one or more at least digital broadcast signals and removes according to signal about the digital broadcast signal that receives and transmits and the signal characteristic of acceptance criteria;
Receive the operation of radio request signal; With
Send middleware and corresponding to radio request signal, therefrom removed according to signal and transmitted and the operation of the digital broadcast signal of the signal characteristic of acceptance criteria.
12. digital broadcast signal processing method as claimed in claim 11, wherein the digital broadcast signal attended operation comprises:
The tuner operation of tuned channel and receiving digital broadcast signal;
Channel-decoding operation, its signal according to the digital broadcast signal that is used to receive transmit and acceptance criteria is separated the mediation channel-decoding about the digital broadcast signal execution that receives, and removal transmits according to signal and the signal characteristic of acceptance criteria; With
The unit attended operation, it is corresponding to the reception of radio request signal, middleware is provided and has therefrom removed according to signal and has transmitted and the digital broadcast signal of the signal characteristic of acceptance criteria to external equipment.
13. digital broadcast signal processing method as claimed in claim 10, wherein said digital broadcast signal indication operation comprises:
Attended operation receives middleware and has therefrom removed digital broadcast signal according to the signal characteristic of signal transmission and acceptance criteria;
The multiple signals lock out operation is separated into vision signal, audio signal and additional data according to the middleware that receives with the digital broadcast signal that receives; With
Decode operation is according to the vision signal and the audio signal of the middleware decoding separation that receives.
14. digital broadcast signal processing method as claimed in claim 13 also comprises conditional access system (CAS) operation, its scrambling mode corresponding to digital broadcast signal is come this digital broadcast signal of descrambling, and wherein the CAS operation is operated according to middleware.
15. digital broadcast signal processing method as claimed in claim 13, also comprise the function storage operation, its storage and the function by providing in the corresponding application programming interfaces of middleware (API) that use broadcast signal process API exploitation, described API is made up of so that handle the function of digital broadcast signal the operation that one group of defining operation and control define.
16. digital broadcast signal processing method as claimed in claim 10, wherein said digital broadcast signal are in ground wave digital broadcasting signal, satellite digital broadcasting signal and the cable digital broadcasting signal any one.
17. a digital broadcast signal treatment system comprises:
The unit connector, it connects the digital broadcast signal interface unit separably, this digital broadcast signal interface unit receiving digital broadcast signal and remove according to signal about the digital broadcast signal that receives and to transmit and the signal characteristic of acceptance criteria;
Memory, its storage are used to handle therefrom removed according to signal and transmit and the middleware of the digital broadcast signal of the signal characteristic of acceptance criteria; With
Receiver CPU, its control middleware and therefrom having removed according to the transmission of the digital broadcast signal of the signal characteristic of signal transmission and acceptance criteria to the digital broadcast signal indicating device.
18. digital broadcast signal treatment system as claimed in claim 17, wherein each described digital broadcast signal interface unit comprises:
Tuner, its tuned channel and receiving digital broadcast signal;
Channel decoder, its signal according to the digital broadcast signal that is used to receive transmit and acceptance criteria is separated the mediation channel-decoding about the digital broadcast signal execution that receives, and remove the signal characteristic according to signal transmission and acceptance criteria; With
Unit interface, its by receiver CPU control and receive the digital request signal from the digital broadcast signal indicating device, and middleware is provided and has therefrom removed digital broadcast signal according to the signal characteristic of signal transmission and acceptance criteria to external equipment.
19. digital broadcast signal treatment system as claimed in claim 17, wherein said middleware is with the JAVA programming language development.
20. digital broadcast signal treatment system as claimed in claim 17 also comprises conditional access system (CAS), its scrambling mode corresponding to digital broadcast signal is come this digital broadcast signal of descrambling.
21. digital broadcast signal treatment system as claimed in claim 17, wherein said digital broadcast signal are in ground wave digital broadcasting signal, satellite digital broadcasting signal and the cable digital broadcasting signal any one.
22. a digital broadcast signal indicating device comprises:
Interface unit, it receives therefrom to have removed according to signal and transmits and the digital broadcast signal of the signal characteristic of acceptance criteria and be used to handle the middleware of therefrom having removed according to the digital broadcast signal of the signal characteristic of signal transmission and acceptance criteria;
Demultiplexer, it is separated into vision signal, audio signal and additional data with the digital broadcast signal that receives;
One or more decoders, vision signal and audio signal that its decoding separates; With
Indicating device CPU, it controls described demultiplexer and decoder according to the middleware that receives.
23. digital broadcast signal indicating device as claimed in claim 22 has wherein therefrom been removed according to signal and has been transmitted and the digital broadcast signal of the signal characteristic of acceptance criteria is a digital broadcast signal of being separated the mediation channel-decoding according to the signal transmission that is applied to digital broadcast signal and acceptance criteria, corresponding to chnnel coding and modulation system.
24. digital broadcast signal indicating device as claimed in claim 22 also comprises conditional access system (CAS), its scrambling mode corresponding to digital broadcast signal is come this digital broadcast signal of descrambling, and wherein CAS operates according to middleware.
25. digital broadcast signal indicating device as claimed in claim 22, also comprise function storaging unit, its storage and the corresponding function of middleware that passes through to use broadcast signal process application programming interfaces (API) exploitation, described application programming interfaces are made up of so that handle the function of digital broadcast signal in the digital broadcast signal indicating device the operation that one group of defining operation and control define.
26. the additional data after digital broadcast signal indicating device as claimed in claim 22, wherein said indicating device CPU also will be handled according to the middleware processes additional data is added into vision signal.
27. digital broadcast signal indicating device as claimed in claim 22, wherein said digital broadcast signal are in ground wave digital broadcasting signal, satellite digital broadcasting signal and the cable digital broadcasting signal any one.
28. a digital broadcast signal indicating means comprises:
Receive therefrom to have removed and transmit and the digital broadcast signal of the signal characteristic of acceptance criteria and be used to handle the middleware of therefrom having removed according to the digital broadcast signal of the signal characteristic of signal transmission and acceptance criteria according to the signal that is used for digital broadcast signal;
According to described middleware the digital broadcast signal that receives is separated into vision signal, audio signal and additional data; With
Vision signal and audio signal according to described middleware decoding separation.
29. digital broadcast signal indicating means as claimed in claim 28 has wherein therefrom been removed according to signal and has been transmitted and the digital broadcast signal of the signal characteristic of acceptance criteria is a digital broadcast signal of being separated the mediation channel-decoding according to the signal transmission that is applied to digital broadcast signal and acceptance criteria, corresponding to chnnel coding and modulation system.
30. digital broadcast signal indicating means as claimed in claim 28 also comprises conditional access system (CAS) operation, its scrambling mode corresponding to digital broadcast signal is come this digital broadcast signal of descrambling, and wherein CAS operates according to middleware.
31. digital broadcast signal indicating means as claimed in claim 28, also comprise the function storage operation, its storage and the corresponding function of middleware that passes through to use broadcast signal process application programming interfaces (API) exploitation, described application programming interfaces are made up of so that handle the function of digital broadcast signal in the digital broadcast signal indicating means the operation that one group of defining operation and control define.
32. digital broadcast signal indicating means as claimed in claim 28 also comprises according to the middleware processes additional data and the additional data after will handling is added into the operation of vision signal.
33. digital broadcast signal indicating means as claimed in claim 28, wherein said digital broadcast signal are in ground wave digital broadcasting signal, satellite digital broadcasting signal and the cable digital broadcasting signal any one.
34. a digital broadcast signal interface unit comprises:
Tuner, its tuned channel and receiving digital broadcast signal;
Channel decoder, it is removed according to signal about the digital broadcast signal that receives and transmits and the signal characteristic of acceptance criteria; With
Unit interface, it provides the digital broadcast signal of therefrom having removed according to the signal characteristic of signal transmission and acceptance criteria to external equipment.
35. digital broadcast signal interface unit as claimed in claim 34 is wherein according to being applied to the signal transmission of digital broadcast signal and acceptance criteria, being in harmonious proportion channel-decoding corresponding to separating of chnnel coding and modulation system and removing according to signal and transmit and the signal characteristic of acceptance criteria by using.
36. digital broadcast signal interface unit as claimed in claim 34 also comprises the memory that is used to store middleware, described middleware is to be used to handle therefrom removed according to signal transmit and the program of the digital broadcast signal of the signal characteristic of acceptance criteria.
37. a computer-readable recording medium that comprises the digital broadcast signal indicating means, described method comprises:
Receive therefrom to have removed and transmit and the digital broadcast signal of the signal characteristic of acceptance criteria and be used to handle the middleware of therefrom having removed according to the digital broadcast signal of the signal characteristic of signal transmission and acceptance criteria according to the signal that is used for digital broadcast signal;
According to described middleware the digital broadcast signal that receives is demodulated into vision signal, audio signal and additional data; With
Vision signal and audio signal according to described middleware decoding separation.
38. computer-readable recording medium as claimed in claim 37 has wherein therefrom been removed according to signal and has been transmitted and the digital broadcast signal of the signal characteristic of acceptance criteria is a digital broadcast signal of being separated the mediation channel-decoding according to the signal transmission that is applied to digital broadcast signal and acceptance criteria, corresponding to chnnel coding and modulation system.
39. computer-readable recording medium as claimed in claim 37, wherein said method also comprises:
Conditional access system (CAS) operation, its scrambling mode corresponding to digital broadcast signal is come this digital broadcast signal of descrambling, and wherein CAS operates according to middleware.
40. computer-readable recording medium as claimed in claim 37, wherein said method also comprises:
The function storage operation, its storage and the corresponding function of middleware that passes through to use broadcast signal process application programming interfaces (API) exploitation, described application programming interfaces are made up of so that handle the function of digital broadcast signal in the digital broadcast signal indicating means the operation that one group of defining operation and control define.
41. computer-readable recording medium as claimed in claim 37 also comprises according to the middleware processes additional data and the additional data after will handling is added into the operation of vision signal.
42. computer-readable recording medium as claimed in claim 37, wherein said digital broadcast signal are in ground wave digital broadcasting signal, satellite digital broadcasting signal and the cable digital broadcasting signal any one.
CNB2004100879994A 2003-11-24 2004-10-26 Digital broadcast signal processing system and method capable of receiving multi digital broadcast signal Expired - Fee Related CN100385951C (en)

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KR83680/2003 2003-11-24
KR83680/03 2003-11-24
KR1020030083680A KR100599166B1 (en) 2003-11-24 2003-11-24 Digital broadcasting signal processing system capable of receiving plural number of broadcasting signales and a method thereof

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CN1622625A true CN1622625A (en) 2005-06-01
CN100385951C CN100385951C (en) 2008-04-30

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US7649949B2 (en) * 2005-07-28 2010-01-19 Sony Corporation Multipurpose television module
EP1972139A4 (en) * 2006-01-04 2011-12-28 Audiovox Corp Receiver and distribution unit for vehicle entertainment system
KR101196258B1 (en) * 2008-11-19 2012-11-05 한국전자통신연구원 Apparatus and method for providing broadcasting service and system thereof
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JP3407838B2 (en) * 1995-09-05 2003-05-19 ソニー株式会社 Video on demand system
US5886732A (en) * 1995-11-22 1999-03-23 Samsung Information Systems America Set-top electronics and network interface unit arrangement
ES2167895T3 (en) * 1998-04-14 2002-05-16 Fraunhofer Ges Forschung DUAL RECEIVER TO RECEIVE TERRESTRIAL AND SATELLITE SIGNS IN A DIGITAL BROADCASTING SYSTEM.
JP2002238003A (en) * 2000-12-07 2002-08-23 Matsushita Electric Ind Co Ltd Device and method for selecting and executing middleware for moving image reproduction
US8291457B2 (en) * 2001-05-24 2012-10-16 Vixs Systems, Inc. Channel selection in a multimedia system
GB2377574A (en) * 2001-07-12 2003-01-15 Graeme Roy Smith Modular software/firmware definable video server
EP1304871A3 (en) * 2001-08-21 2003-06-18 Canal+ Technologies Société Anonyme Method and apparatus for a receiver/decoder
US20040181811A1 (en) * 2003-03-13 2004-09-16 Rakib Selim Shlomo Thin DOCSIS in-band management for interactive HFC service delivery

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KR100599166B1 (en) 2006-07-12
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